Warp-beam head.



T. J. SANDS. I WARP BEAM HEAD.

APPLICATION FILED APB.6,1908.

Patented July 6, 1909.

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THOMAS J. SANDS, OF WINOOSKI, VERMONT.

WARP-BEAM HEAD.

Specification of Letters Patent.

Application filed April 6, 1908.

Patented July 6, 1909.

Serial No. 425,3e11.

To all whom it may concern:

Be it known that I, Tnonns J. SANDS, of lVinooski, in the county of 'Chittenden and State of Vermont, have invented certain new and useful Improvements in arp-Beam Heads; and I do hereby declare that the following is a full, clear, and. exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the charactors of reference marked thereon, which form part of this specification.

The object of my present invention is to provide an adjustable and removable flange or head" for socalled. loom beams (which are, in fact, rollers on which the warp is wound), which is simple in construction, efficient in operation and which does not damage or injure the beam. These beams are usually of wood and. the present device is better adapted perhaps to a wooden beam.

Figure 1 shows the head from the outer side. Fig. 2 shows the same from the inner side with a jack or wrench applied thereto for operating the parts in securing it to or releasing it from the beam. Fig. 3 is a vertical sectional View taken on line 3-3 of Fig. 1. Fig. 4 is another sectional view taken on line 4 4 of Fig. 1. Fig. 5 is a detailed view partially in section on a small scale showing features of the construction.

Referring to the reference characters in a more particular description, 10 indicates a thin ring-shaped body ilat on one face, and. provided on its inner edge with two curved cam faces 10, 10 Within the ring and fitting said. cam faces are the two wedges 1.1.11. The inner edges of the wedges 1.1 form a substantially circular opening adapt ed to receive and substantially fit the beam 12, and these inner edges are preferably serrated, as shown, to allow them to secure a better frictional hold of the beam. Between the adjacent ends of the wedges 11 are intro duced springs 13, which serve to expand or separate the two cam wedges and hold them outwardly in contact with the cam faces 10, 10. The face side of the wedges 1.1 are arranged to lie in the same plane with the face of the ring 10, and these wedges are held from lateral displacement in the direction toward the face side by a flange 11. The wedges are provided on their outer sides with a segmental slot 14 adapted to receive a screw-threaded stud 1.5 secured in the body of the ring 10 and provided with a nut 16 on the outer end. In order to lessen the weight and decrease the cost, the wedges 1.1. are out out and reduced to skeleton form, but pro vidcd with spoke-like stays or cross bars 17. In order to lighten the weight and reduce the cost of the body ring 10, it is also provided with numerous holes or perforations as 18. The screw-threaded studs 15 with. their nuts 16 are useful to lock the cam wedges to the ring-like body, as well as prevent lateral dis placement of these parts with reference to each other, whether tight or loose.

For conveniently securing the device on the beam or loosening it therefrom, I provide ack consisting of a base 20 having a headed stud or projection adapted to enter one of the openings 18 and made tubular to receive the sliding screw-threaded stem 21 which is provided with a hook on one end adapted to en gage with one of the stays 17, and at the other end with a nut 22 having an operating lever 22 thereon.

Loom beams are provided 011 their ends with a pulley or enlargement as 25, and it is important in a removable beam head that it be capable of being placed on or removed from the beam by passing over this pulley or enlargement without the necessity of removing the same from the beam. To this end the opening in the ring body 1.0 which receives the wedges 11 is made sufficiently large to allow the ring to pass over the pulley 25. After being so passed, the wedges 11 can be inserted in position, and the nuts 16 replaced. The device as a whole is then lo cated at the desired point anywhere on the beam with reference to its longitudinal dimonsion, when it maybe secured. by applying the jack, as shown in Fig. 2, and forcing the wedges around with reference to the body ring in the direction indicated. by the arrows in Fig. 2 or the ring around with reference to the wedges. As this is done the wedges close in on and obtain. a secure grip and hold on the body of the roller. When duly tightened the wedges will be secured against accidental movcment by tightening the locking nuts 16. Of course, it will be understood that two of these heads are ordinarily pro vided on each beam facing inwardly toward each other and placed. at such a distance as the width of the warp being operated upon in the loom will require. The heads are readily released by loosening the nuts 16 and applying the jack in the opposite manner from that in which it is shown in Fig. 2.

A feature of this device is that it inflicts no material injury or wear on the beam, and as these heads are necessarily very frequently adjusted along the beam this is a point of importance.

Modifications and changes in and from the construction described can, of course, be made without departing from the invention herein described and claimed.

What I claim as new and desire to secure by Letters Patent is:

1. The combination of a roller, segmental wedges substantially encircling the roller, a flange ring surrounding the wedges h aying internal cam faces engaging with the wedges and rotatably adjustable with reference to the wedges, substantially as set forth.

2. The combination of a roller, a flange ring having cam faces on the inner edge, curved wedges fitting said cam faces and engaging the beam, and springs interposed between the ends of the curved wedges whereby they are held expanded in the ring, substantially as set forth.

3. The combination of a roller, a flange ring having internal curved cam faces, segmental wedges arranged within the ring and fitting the cam faces as to their outer sides and substantially encircling and fitting the roller as to their inner sides and adjustable by rotation with reference to the ring, substantially as set forth.

l, The combination of a roller, segmental wedges substantially encircling the roller, a

flange ring surroundlng the wedges having L internal cam faces engaging with the wedges and rotatably adjustable with reference to the wedges, and means for securing the wedges within the ring and securing them with reference to the ring when adjusted, substantially as set forth.

In witness whereof, I have aflixed my signature, in presence of two witnesses, this 30th day of March 1908.

THOlriAS J. SANDS.

Witnesses:

M. L. SMITH, H. J. HUMMER. 

